This feature lets you hide/show menu items from the Actions menu associated to every lists. Each list can be configured individually without interfeering with the others.
the URL directly in the browser.
Here are a few screenshots illustrating the functionality :
Web feature available in the "Site Features" :
After having activated the feature, each list should have an additional link in its settings :
When clicking on that link, list owners are redirected to the following application page :
where they can check/uncheck which items that are to be shown. If you uncheck all the items, the actions menu disappears for the target list.
Here is an example showing a configuration where only the "Alert Me" menu item is available (according to the previous screenshots)
For the datasheet view, if you chose to disable it, it will really be disabled, any user who would try to type the URL directly in the browser would receive an HTTP 403 as illustrated below :